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The world we see that seems so insane is the result of a belief system that is not working. To perceive the world differently， we must be willing to change our belief system， let the past slip away， expand our sense of now， and dissolve the fear in our minds.

Program testing can be used to show the presence of bugs, but never to show their absence!

人類不是存在物的主人，而是存在的牧羊人。

作為一個有創造力的人，最危險的想法是認為你知道自己在做什么。